diff --git a/.claude/commands/deploy.md b/.claude/commands/tensors/deploy.md
similarity index 92%
rename from .claude/commands/deploy.md
rename to .claude/commands/tensors/deploy.md
index 00c213d..c9e3eb4 100644
--- a/.claude/commands/deploy.md
+++ b/.claude/commands/tensors/deploy.md
@@ -5,7 +5,7 @@ Deploy tensors API server to junkpile.
 Run the deploy script:
 
 ```bash
-./scripts/deploy.sh
+ruby scripts/deploy.rb
 ```
 
 ## What it does
@@ -14,6 +14,7 @@ Run the deploy script:
 2. **Fix permissions** - Sets ownership to `tensors:tensors`
 3. **Restart tensors** - Runs `sudo systemctl restart tensors`
 4. **Verify tensors** - Checks service is running
+5. **Health check** - Verifies API responds
 
 ## Service Structure
 
diff --git a/scripts/deploy.rb b/scripts/deploy.rb
new file mode 100755
index 0000000..7b3fea2
--- /dev/null
+++ b/scripts/deploy.rb
@@ -0,0 +1,84 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+# Deploy tensors to junkpile
+# Usage: ruby scripts/deploy.rb
+
+require "open3"
+
+REMOTE = "chi@junkpile"
+REMOTE_DIR = "/opt/tensors/app"
+LOCAL_DIR = File.expand_path("..", __dir__)
+
+def run(cmd, desc: nil)
+  puts "==> #{desc}" if desc
+  puts "    $ #{cmd}" if ENV["DEBUG"]
+
+  stdout, stderr, status = Open3.capture3(cmd)
+
+  unless status.success?
+    puts "ERROR: #{stderr}" unless stderr.empty?
+    puts stdout unless stdout.empty?
+    exit 1
+  end
+
+  stdout
+end
+
+def ssh(cmd)
+  run(%(ssh #{REMOTE} "#{cmd}"))
+end
+
+puts "==> Syncing Python code to junkpile..."
+run(<<~CMD.gsub("\n", " ").strip)
+  rsync -av --delete
+  --exclude='.git'
+  --exclude='__pycache__'
+  --exclude='.venv'
+  --exclude='node_modules'
+  --exclude='.ruff_cache'
+  --exclude='.mypy_cache'
+  --exclude='.pytest_cache'
+  --exclude='*.egg-info'
+  --rsync-path="sudo rsync"
+  #{LOCAL_DIR}/tensors/ #{REMOTE}:#{REMOTE_DIR}/tensors/
+CMD
+
+puts ""
+puts "==> Fixing permissions..."
+ssh("sudo chown -R tensors:tensors #{REMOTE_DIR} && sudo chmod -R g+w #{REMOTE_DIR}")
+
+puts ""
+puts "==> Restarting tensors service..."
+ssh("sudo systemctl restart tensors")
+
+puts ""
+puts "==> Waiting for tensors to start..."
+sleep 2
+
+puts ""
+puts "==> Verifying tensors service..."
+status = ssh("systemctl is-active tensors").strip
+
+if status == "active"
+  puts "✓ tensors service running"
+else
+  puts "✗ tensors service not running (status: #{status})"
+  puts ssh("journalctl -u tensors -n 10 --no-pager")
+  exit 1
+end
+
+puts ""
+puts "==> Checking API health..."
+response = ssh("curl -sf http://127.0.0.1:51200/status || echo 'FAILED'").strip
+
+if response.include?("FAILED")
+  puts "✗ API health check failed"
+  exit 1
+else
+  puts "✓ API responding"
+end
+
+puts ""
+puts "==> Deploy complete!"
+puts "    API: https://tensors-api.saiden.dev"
diff --git a/scripts/deploy.sh b/scripts/deploy.sh
deleted file mode 100755
index 7ce7e35..0000000
--- a/scripts/deploy.sh
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/usr/bin/env bash
-# Deploy tensors to junkpile
-# Usage: ./scripts/deploy.sh
-
-set -e
-
-REMOTE="chi@junkpile"
-REMOTE_DIR="/opt/tensors/app"
-LOCAL_DIR="$(cd "$(dirname "$0")/.." && pwd)"
-
-echo "==> Syncing Python code to junkpile..."
-rsync -av --delete \
-  --exclude='.git' \
-  --exclude='__pycache__' \
-  --exclude='.venv' \
-  --exclude='node_modules' \
-  --exclude='.ruff_cache' \
-  --exclude='.mypy_cache' \
-  --exclude='.pytest_cache' \
-  --exclude='*.egg-info' \
-  --rsync-path="sudo rsync" \
-  "$LOCAL_DIR/tensors/" "$REMOTE:$REMOTE_DIR/tensors/"
-
-echo ""
-echo "==> Fixing permissions..."
-ssh "$REMOTE" "sudo chown -R tensors:tensors $REMOTE_DIR && sudo chmod -R g+w $REMOTE_DIR"
-
-echo ""
-echo "==> Restarting tensors service..."
-ssh "$REMOTE" "sudo systemctl restart tensors"
-
-echo ""
-echo "==> Waiting for tensors to start..."
-sleep 2
-
-echo ""
-echo "==> Verifying tensors service..."
-SERVICE_STATUS=$(ssh "$REMOTE" "systemctl is-active tensors" 2>/dev/null)
-if [ "$SERVICE_STATUS" = "active" ]; then
-  echo "✓ tensors service running"
-else
-  echo "✗ tensors service not running"
-  ssh "$REMOTE" "journalctl -u tensors -n 10 --no-pager"
-  exit 1
-fi
-
-echo ""
-echo "==> Deploy complete!"
-echo "    API: http://junkpile:51200"